#981B4-022 Tachometer Revolutions Per Minute | Engine Instruments

981B4-022

Electrical Tachometer Indicator

NSN 6620-00-663-4275

DEMIL
Shelf Life
UOM
NIIN
Demil:
DEMIL/MLI
Shelf Life:
UOM:
NIIN:
006634275

Detail Specifications

Scale Marking And Surface Finish:
Minor graduation luminous and major graduation luminous and minor graduation luminous and major graduation luminous
Width:
3.250 inches
Current Type:
Ac
Depth:
5.250 inches
Contact Quantity:
3
Contact Type:
Pin
Presentation Type:
Synchro motor
Individual Marking:
Marked w/straight black line in center; r
Electrical Connection Quantity:
2
Electrical Connection Identifying Number:
Part no. X-814-8-1
Mounting Facility Type And Quantity:
4 unthreaded hole
Mounting Stud Diameter:
0.1695 inches
Height:
3.250 inches
Fsc Application Data:
Engine instrument aircraft
NSN:
6620-00-663-4275
Item Name:
Tachometer Revolutions Per Minute
Cage Code:
89944

Manufacturer Part Numbers

No other part numbers with same form, fit, and function found.

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Catalog Drilldown
--- Instruments And Laboratory Equipment
------ Engine Instruments
--------- Electrical Tachometer Indicators
------------ P/N 981B4-022

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Last Updated: 05/04/2025